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Träfflista för sökning "WFRF:(Visser W. E.) srt2:(2001-2004)"

Search: WFRF:(Visser W. E.) > (2001-2004)

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1.
  • Both, C., et al. (author)
  • Large-scale geographical variation confirms that climate change causes birds to lay earlier
  • 2004
  • In: Proceedings of the Royal Society of London Series B-Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 271:1549, s. 1657-1662
  • Journal article (peer-reviewed)abstract
    • Advances in the phenology of organisms are often attributed to climate change, but alternatively, may reflect a publication bias towards advances and may be caused by environmental factors unrelated to climate change. Both factors are investigated using the breeding dates of 25 long-term studied populations of Ficedula flycatchers across Europe. Trends in spring temperature varied markedly between study sites, and across populations the advancement of laying date was stronger in areas where the spring temperatures increased more, giving support to the theory that climate change causally affects breeding date advancement.
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2.
  • Friberg, Ari T., et al. (author)
  • Focal shifts of converging diffracted waves of any state of spatial coherence
  • 2001
  • In: Optics Communications. - 0030-4018 .- 1873-0310. ; 196:06-jan, s. 1-7
  • Journal article (peer-reviewed)abstract
    • We analyze the focusing of wave fields of any state of coherence by systems with low Fresnel numbers. We study the optical intensity on the axis in the focal region. The dependence of the focal shift and of the maximum on-axis intensity on the state of coherence is examined for some model fields.
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  • Result 1-2 of 2

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